The real cost of a missed call for plumbers
This post is a spreadsheet. If you own a one-truck plumbing operation, you can probably finish it in four minutes and know whether your voicemail is costing you real money.
The starting numbers
Let us use figures that match the US residential plumbing market in 2026. Trade association benchmarks and HomeAdvisor / Angi data put the average residential callout at $250 to $800, depending on whether it is a diagnostic visit or a fix-on-the-spot job. We will use $400 as a round middle.
Call-to-booking conversion is the other lever. Commonly cited industry estimates put the answered-call booking rate somewhere around 45% for residential trades — the rest are price shoppers, wrong numbers, or situations the caller decides to handle themselves. Calls that go to voicemail convert far worse; benchmarks we’ve seen typically put it in the single digits, roughly 5–10%. Most people do not leave voicemails, and most people who do never get called back fast enough to still care. Your own numbers will vary — the point is the gap between the two is huge.
A typical one-truck operation takes 4 to 10 inbound calls on a working day. We will use 5.
The math
Five calls a day. Assume 40% hit voicemail — that is the optimistic end for a busy plumber who is under a sink. So two calls per day go unanswered.
Two voicemails at a 6% callback-and-book rate equals roughly 0.12 jobs recovered per day. At $400 per booked job, that is $48 of expected revenue you are capturing from voicemail.
Now rerun the same two calls as if they had been answered in person, at the 45% conversion rate: 0.9 jobs at $400 is $360 of expected revenue per day.
The gap — $360 minus $48 — is $312 per day in expected revenue you are losing to voicemail. Across 22 working days that is around $6,800 a month.
The math does not have to be exact to matter. Even if your real numbers are half of these, you are still losing multiple Kyra subscriptions' worth of revenue every week.
Comparing the options
It would be dishonest to pretend Kyra is the only way to attack this problem. Here are your realistic options, ranked by cost:
Missed-call SMS auto-reply.Free to $10/mo on most VoIP providers. When a call goes to voicemail it triggers an SMS saying "Sorry I missed your call — reply here with a quick description." Better than nothing. Recovery rates typically run 15–25% — a real improvement, but you still have to reply personally, and you still miss truly urgent jobs.
Kyra AI receptionist.$49/mo Starter or $99/mo Growth plus the $79/mo Phone + SMS add-on (one dedicated business number that handles voice calls and SMS on the same line) — or $299/mo Pro and above, where Phone + SMS is included. Picks up every call in full conversation, books directly into your calendar, text-escalates genuine emergencies. We’re still collecting our own pilot data, so we won’t quote a recovery number yet — but the math above is straightforward: if you book even a third of your missed callbacks, you’ve paid for a year of Kyra with your first month.
Human answering service. $150 to $400/mo, charged per minute. Off the shelf, not trained on your pricing, does not book. Conversion is usually single digits.
Full-time receptionist. $2,500/mo minimum, plus payroll tax and benefits, and they only cover business hours. Great if you can afford it. Most one-truck operators cannot.
What to actually do this week
If you do one thing, turn on a missed-call SMS auto-reply today. It is free, it takes five minutes, and it will recover some of the $6,800.
If you want to close the rest of the gap, try a 7-day Kyra trial. We give you a fresh phone number so you can forward calls to it and listen to how Kyra handles them before you commit. No contract, cancel any time. The worst case is you spent a week hearing exactly how many jobs your voicemail has been eating.